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    欧进萍

    • 教授     博士生导师   硕士生导师
    • 性别:男
    • 毕业院校:哈尔滨建筑大学
    • 学位:博士
    • 所在单位:建设工程学院
    • 电子邮箱:ojinping@dlut.edu.cn

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    Numerical simulation of aerodynamic derivatives and critical wind speed for long-span bridges based on simplified steady wind field

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    论文类型:期刊论文

    发表时间:2007-06-01

    发表刊物:EARTHQUAKE ENGINEERING AND ENGINEERING VIBRATION

    收录刊物:SCIE、EI、Scopus

    卷号:6

    期号:2

    页面范围:197-203

    ISSN号:1671-3664

    关键字:aerodynamic derivatives; critical flutter wind speed; numerical simulation; wind tunnel test; long-span bridges

    摘要:Combining the computational fluid dynamics-based numerical simulation with the forced vibration technique for extraction of aerodynamic derivatives, an approach for calculating the aerodynamic derivatives and the critical flutter wind speed for long-span bridges is presented in this paper. The RNG k-epsilon turbulent model is introduced to establish the governing equations, including the continuity equation and the Navier-Stokes equations, for solving the wind flow field around a two-dimensional bridge section. To illustrate the effectiveness and accuracy of the proposed approach, a simple application to the Hume Bridge in China is provided, and the numerical results show that the aerodynamic derivatives and the critical flutter wind speed obtained agree well with the wind tunnel test results.